Job No.: TCS00694/13

 

 

 

 

 

 

 

 

 

Agreement No. CE 45/2008 (CE)

Liantang/Heung Yuen Wai

Boundary Control Point and Associated Works

 

 

 

 

 

 

 

 

 

Monthly Environmental Monitoring and Audit Report (No.61) – August 2018

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Civil Engineering and Development Department (CEDD)

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

13 September 2018

TCS00694/13/600/R1780v2

Nicola Hon

 (Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

10 September 2018

First Submission

2

13 September 2018

Amended against IEC’s comment on 11 and 13 September 2018

 

 

 

 

 

 


 

 

 

 

executive summary

ES01            This is the 61st monthly EM&A report presenting the monitoring results and inspection findings for the reporting period from 1 to 31 August 2018 (hereinafter ‘the Reporting Period’).

Environmental Monitoring and Audit Activities

ES02            To facilitate the project management and implementation, Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project is divided to seven CEDD contracts including Contract 2 (CV/2012/08), Contract 3 (CV/2012/09), Contract 4 (NE/2014/02), Contract 5 (CV/2013/03), Contract 6 (CV/2013/08) and Contract 7 (NE/2014/03) and an ArshSD contract (Contract SS C505).

ES03            In the Reporting Period, the major construction works under Liantang/Heung Yuen Wai Boundary Control Point and Associated Works of the Project included Contract 2, Contract 3, Contract 4, Contract 6, Contract 7 and Contract SS C505.  Environmental monitoring activities under the EM&A programme in the Reporting Period are summarized in the following table.

Environmental Aspect

Environmental Monitoring Parameters / Inspection

Reporting Period

Number of Monitoring Locations to undertake

Total Occasions 

Air Quality

1-hour TSP

9

147

24-hour TSP

9

45

Construction Noise

Leq(30min) Daytime

10

45

Water Quality

Water in-situ measurement and/or sampling

WM1 & WM1-C

13 Scheduled & 2 extra

WM2A(a) & WM2A-Cx

13 Scheduled & 5 extra

WM2B & WM2B-C

13 Scheduled & 0 extra (*)

WM3x &WM3-C

13 Scheduled & 3 extra

WM4, WM4-CA &WM4-CB

13 Scheduled & 2 extra

Ecology

Woodland compensation

i)      General Health condition of planted species

ii)     Survival of planted species

9 Quadrats and transect

1

Joint Site Inspection / Audit

IEC, ET, the Contractor and RE joint site Environmental Inspection and Auditing

Contract 2

5

Contract 3

5

Contract 4

5

Contract 6

5

Contract 7

5

Contract SS C505 (#)

5

Remark: (#) IEC only joined one (1) event of site inspection for Contract SS C505.

             (*) In the whole Reporting Period, water sampling was unable to carry out at WM2B and WM2B-C due to shallow water (water depth under 150mm) 

 

Action and Limit (A/L) Levels exceedance

ES04            In the Reporting Period, no air quality and construction noise exceedance and valid noise complaint was recorded.  For water quality monitoring, a total of thirty (30) Action/ Limit Level exceedances were recorded under the Project.  The summary of exceedance in the Reporting Period is shown below.

Environmental Aspect

Monitoring Parameters

Action Level

Limit Level

Event & Action

NOE Issued

Investigation Result

Project related exceedance

Corrective Actions

Air Quality

1-hour TSP

0

0

0

--

--

--

24-hour TSP

0

0

0

--

--

--

Construction Noise

Leq(30min) Daytime

0

0

0

--

--

--

Water Quality

DO

0

0

0

-

--

--

Turbidity

0

16

16

Refer to ES.05

The Contractor should fully implement water quality mitigation measure.

SS

1

13

14

ES05            Investigation Reports for water quality exceedances have been conducted by ET accordingly.  Investigation results revealed that the Contractor had properly implemented water quality mitigation measures such as well-maintained the wastewater treatment facility and covered the expose area with impervious sheet.  It was concluded that all exceedances recorded at WM3x and the exceedances recorded at WM1 on 10 August 2018 were not caused by the works under the Project.  However, there were 5 AL/ LL exceedances recorded at WM4 concluded as partially related to the work under Contract 2 while the Contractor has promptly rectified the deficiency.  Furthermore, the investigation for exceedances recorded at WM2A(a) during 22 to 31 August 2018 and recorded at WM1 on 30 August 2018 are still underway by ET and the investigation result will be presented in next Monthly EM&A Report.

Environmental Complaint

ES06            In this Reporting Period, one environmental complaint was recorded related to works under contract 6.  The IR revealed that some deficiencies at site exit was observed, however, the Contractor has promptly rectified the deficiencies and provided remedial action to response the complaint.  Besides, no environmental summons and prosecution were received under the EM&A programme.

Notification of Summons and Successful Prosecutions

ES07            No environmental summons and prosecutions were recorded in the Reporting Period. 

Reporting Change

ES08            No reporting changes were made in the Reporting Period.

Site Inspection

ES09            In this Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 2 has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 24 and 31 August 2018.  No non-compliance was noted during the site inspection. 

ES10            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 3 has been carried out by the RE, IEC, ET and the Contractor on 2, 9, 15, 23 and 30 August 2018.  No non-compliance was noted during the site inspection. 

ES11            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 4 has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 20 and 31 August 2018.  No non-compliance was noted.  

ES12            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract 6 has been carried out by the RE, IEC, ET and the Contractor on 2, 9, 16, 23 and 30 August 2018.  No non-compliance was noted during the site inspection. 

ES13            In the Reporting Period, joint site inspection for Contract 7 to evaluate the site environmental performance has been carried out by the RE, IEC, ET and the Contractor on 3, 10, 17, 21 and 31 August 2018.  No non-compliance was noted during the site inspection. 

ES14            In the Reporting Period, joint site inspection to evaluate the site environmental performance at Contract SS C505 has been carried out by the RE, ET and the Contractor on 1, 8, 15, 22 and 29 August 2018 in which IEC joined the site inspection on 22 August 2018.  No non-compliance was noted during the site inspection.

Future Key Issues

ES15            During rainy season, preventive measures for muddy water or other water pollutants from site surface flow to local stream such as Kong Yiu Channel, Ma Wat Channel, Ping Yuen River, Kwan Tei River or public area should be properly maintained.  The Contractors should paid special attention on water quality mitigation measures and fully implement according ISEMM of the EM&A Manual, in particular for working areas near Ma Wat Channel and Ping Yuen River.

ES16            In addition, all effluent discharge shall be ensure to fulfill Technical Memorandum of Effluent Discharged into Drainage and Sewerage Systems, inland and Coastal Waters criteria or discharge permits stipulation.

ES17            Construction noise would be a key environmental issue during construction work of the Project.  Noise mitigation measures such as using quiet plants should be implemented in accordance with the EM&A requirement.